GA Milestone Review

Sulfur is a nonmetal. Of the following, the physical characteristic that is most

likely to describe a sample of sulfur is —

• a shiny appearance

• brittleness

• malleability

• ductility

How many of each atom are in the compound above?

• 1 magnesium atom, 2 iron atoms, and 4 oxygen atoms

• 3 magnesium atoms, 2 iron atoms, and 4 oxygen atoms

• 6 magnesium atoms, 6 iron atoms, and 12 oxygen atoms

• 3 magnesium atoms, 6 iron atoms, and 12 oxygen atoms

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Look at the pictures above. A shows the bag before the vinegar and baking soda are mixed together, and B shows it after they are mixed together. In which picture do the contents of the bag have the greater mass?

• The mass is greater in A—before they are mixed.

• The mass is greater in B—after they are mixed.

• The mass is the same in both.

• The mass depends on the temperature.

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Which of the following is the best clue that a chemical reaction has taken place?

• Change in color

• Change in state

• Change in particle size

• Change in volume

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In this model, which particle determines the reactivity of this atom?

• Particle W

• Particle X

• Particle Y

• Particle Z

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What is the net force and the direction of movement?

• 50 Newtons, Left

• 50 Newtons, Right

• 500 Newtons, RIght

• 450 Newtons, LEft

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What law of motion does this picture represent?

• Newtons 1st law

• law of gravity 

• Newtons 4th law 

• Newtons 2nd law

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What law of motion does this picture represent?

• Newtons 1st law

• Newtons 4th law 

• Newtons 3rd law 

• Newtons 2nd law

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__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 

• velocity

• gravity

• net force

• distance

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A unbalanced force means that an object is 

• zero net force

• changing its motion

• sitting still

• object at rest

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